Katzelle3

joined 2 years ago
[–] Katzelle3 10 points 7 hours ago

Δ is the greek uppercase letter Delta, which is used to denote change or difference in math. In the changemyview subreddit the OP can reply with Δ if any comment under their post has convinced them of a different viewpoint.

[–] Katzelle3 7 points 1 week ago

Reading it the wrong way doesn't really change the meaning though.

[–] Katzelle3 25 points 2 weeks ago (5 children)

So they're gonna be called Four Eyes then?

[–] Katzelle3 4 points 3 weeks ago (1 children)

The most mind blowing thing to me is how close those places are to city centers, like wouldn't they think that there might be a visual clash if you place bungalows right next to skyscrapers?

[–] Katzelle3 22 points 4 weeks ago (2 children)

I don't think it's correct though.

The graph suggests that you should be looking at a 65-inch screen from a distance of 120 cm for resolutions above 4k to be worth it. I interpret that as the distance at which the screen-door effect becomes visible, so this seems awfully close actually.

A 65-inch screen has a width of 144 cm, which gives you a 100 degree angle of vision from the left edge to the right edge of the screen. Divide the approximate horizontal resolution of 4000 pixels by 100 and you get an angular pixel density of 40 PPD (Pixels Per Degree).

However for the pixel gaps to become too small to be seen or in other words for the screen-door effect to disappear, you need an angular pixel density of 60 PPD. That means you can sit at a more reasonable distance of 220 cm in front of a 65-inch screen for resolutions above 4k to be worth it.

This is still too close for comfort though, given that the resulting horizontal angle of vision is 66 degrees. The THX cinema standard recommends a horizontal viewing angle of 40 degrees.

So multiply 40 degrees by 60 pixels per degree to get a horizontal resolution of 2400 pixels. That means the perfect resolution for TVs is actually QHD.

[–] Katzelle3 14 points 1 month ago (1 children)

Pretty sure americans have more reasons to use a VPN than europeans do.

[–] Katzelle3 3 points 8 months ago

Is this whole thing about becoming a wizard true though?

[–] Katzelle3 21 points 9 months ago

"My source is that I made it the fuck up"

[–] Katzelle3 7 points 9 months ago (5 children)

There are people who don't like Gorgonzola?

[–] Katzelle3 72 points 9 months ago (2 children)

Pretty sure the samurai were so much into the idea of beating their neighbors that they immediately jumped onto guns almost immediately after the first few got shipped from Europe.

[–] Katzelle3 9 points 1 year ago

Beam steering is the reason why Samsung antennas are so powerful yet have low SAR ratings at the same time.

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